A 295-mL flask contains pure helium at a pressure of 748 torr . A second flask w
ID: 1004440 • Letter: A
Question
A 295-mL flask contains pure helium at a pressure of 748 torr . A second flask with a volume of 480 mL contains pure argon at a pressure of 724 torr If the two flasks are connected through a stopcock and the stopcock is opened, what is the partial pressure of helium? If the two flasks are connected through a stopcock and the stopcock is opened, what is the partial pressure of argon? If the two flasks are connected through a stopcock and the stopcock is opened, what is the total pressure?
He:748 torr .508 fraction
Ar: 724 torr .491 fraction
total volume :
748torr(.508) = 379.98torr for He
724torr(.491) = 355.484 torr for Ar
= torr total pressure
I got here-not sure what partial pressure or what the total pressures are? Help. thanks
Explanation / Answer
total volume =480+295=775mL
748torr(290/775)=280 torr of heleum
724torr(480/775)=448 torr Argon
280+448=728 torr total pressure
Related Questions
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.